Like Belegost a little to the North, Nogrod was ruined during the War of Wrath, when the Blue Mountains were broken and the Gulf of Lune flowed into Eriador. However, it seems that possible that at least one of the cities was rebuilt and lived up through the Fourth Age.[5]

Etymology

Nogrod can be analyzed as containing Naug/Nogoth "dwarf"; the second element *-rod could be a form of rhaud "hollow, cavernous".[6]